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Finding the Fourth Proportional to 358,087.61, 537,131.53 and 91,848.11

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Solution

The fourth proportional to 358,087.61, 537,131.53 and 91,848.11 is: 137,772.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,087.61 : 537,131.53 = 91,848.11 : x
  2. Step 2: Convert to fraction form
    358,087.61/537,131.53 = 91,848.11/x
  3. Step 3: Cross multiply
    358,087.61x = 537,131.53 × 91,848.11
  4. Step 4: Simplify right side
    358,087.61x = 49,334,518,310.13
  5. Step 5: Solve for x
    x = 49,334,518,310.13/358,087.61
  6. Step 6: Final answer
    x = 137,772.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.